comparing t4g.medium, t3a.medium, and t3.medium

 

the t4g.medium, t3a.medium, and t3.medium are all part of Amazon's EC2 T-series instances, which are designed to provide a baseline level of CPU performance with the ability to burst above the baseline when needed. However, they differ in the underlying processor architecture and some other characteristics. Below is a comparative table:

Instance Type	CPU Type	vCPUs	Memory (GiB)	Processor	Network Bandwidth	EBS Bandwidth
t4g.medium	ARM-based	2	4	Graviton2	Up to 5 Gbps	Up to 3.5 Gbps
t3a.medium	AMD-based	2	4	AMD EPYC 7000 series	Up to 5 Gbps	Up to 3.5 Gbps
t3.medium	Intel-based	2	4	Intel Xeon Scalable (Skylake and Broadwell options)	Up to 5 Gbps	Up to 3.5 Gbps

Key Differences:

1. Processor Architecture:

   • t4g.medium uses ARM-based Graviton2 processors.
   • t3a.medium uses AMD EPYC 7000 series processors.
   • t3.medium uses Intel Xeon Scalable processors.

2. Price:

   • t3a.medium instances are generally cheaper than t3.medium instances but offer similar performance characteristics.
   • t4g.medium instances are also generally cost-effective due to the efficiency of the Graviton2 processor.

3. Performance:

   • The ARM-based Graviton2 processors in t4g.medium instances are designed for better power efficiency.
   • Both AMD and Intel options in t3a and t3 are more traditional and have been in use for longer periods, and their performance characteristics are well understood.

4. Compatibility:

   • Software that is dependent on specific instruction sets might not be compatible with ARM-based processors, so t3 and t3a could be a safer bet for those applications.

For the most current and accurate information, it's always best to consult the official AWS EC2 documentation or pricing pages.

t3 vs c5 ec2 instance comparison spec & price table

Note: The prices mentioned are for the US East (N. Virginia) region and are subject to change. Also, keep in mind that the optimal EC2 instance type for inference may vary depending on the specific use case and workload.

EC2 Instance Type	vCPUs	Memory (GiB)	Network Bandwidth (Gbps)	Hourly Price ($)	Monthly Price ($)
c5.large	2	4	Up to 10	0.085	62.72
c5.xlarge	4	8	Up to 10	0.17	125.44
c5.2xlarge	8	16	Up to 10	0.34	250.88
c5.4xlarge	16	32	Up to 10	0.68	501.76
c5.9xlarge	36	72	10	1.53	1,127.92
c5.18xlarge	72	144	25	3.06	2,255.84
t3.large	2	8	Up to 5	0.0832	61.28
t3.xlarge	4	16	Up to 5	0.1664	122.56
t3.2xlarge	8	32	Up to 5	0.3328	245.12
t3a.large	2	8	Up to 5	0.075	55.20
t3a.xlarge	4	16	Up to 5	0.15	110.40
t3a.2xlarge	8	32	Up to 5	0.3	220.80